@misc{indiciaeb7be018383f0,
  title = {Lithology of gravel deposits of the Front Range urban corridor, Colorado: data and multivariate statistical analysis},
  author = {David A. Lindsey},
  year = {2001},
  doi = {10.3133/ofr01299},
  url = {https://pubs.usgs.gov/publication/ofr01299},
  note = {Source identifier: ofr01299}
}